ODST now a GonDBack to Halo news: according to Major Nelson, you can now buy Halo 3: ODST (well, the campaign section) on Games On Demand - it went live today! A quick search of XBL Marketplace turns up the price - just $14.99! Grab a copy, and have what might just be the best Halo campaign available at your fingertips. (Louis Wu 17:29:52 UTC)